title: Commentary: Observational studies may conceal a weakly elevated risk under the appearance of consistently reduced risks.
authors.affiliation: IFC-National Research Council, Via Trieste 41, 56100 Pisa, Italy.
authors.forename: Rodolfo
authors.initials: R
authors.lastname: Saracci
authors.forename: Neil
authors.initials: N
authors.lastname: Pearce
mesh_terms: D016022:Case-Control Studies; D040421:Cell Phone; D006801:Humans; D008577:Meningeal Neoplasms / Q000453:epidemiology*; D008579:Meningioma / Q000453:epidemiology*; D015337:Multicenter Studies as Topic; D015588:Observer Variation; D016017:Odds Ratio; D011846:Radio Waves / Q000009:adverse effects; D012306:Risk